Electronic apparatus

Abstract

An electronic apparatus is equipped with housing, a motherboard, a stud, and a lid. The housing constitutes an outer shell of the main body having a shielding property against electromagnetic radiation and an opening located on the bottom wall. The opening is smaller than the total mounting area of a plurality of extension modules which are layered each other. The motherboard is installed in the housing. The stud is attached on the bottom surface side of the motherboard and is fastened by a set of screws together with the plurality of extension modules. The lid has a shielding property against electromagnetic radiation and covers the opening.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

A general architecture that implements the various features of the invention will now be described with reference to the drawings. The drawings and the associated descriptions are provided to illustrate embodiments of the invention and not to limit the scope of the invention.

FIG. 1 is an exemplary perspective view showing an electronic apparatus according to one embodiment of the present invention;

FIG. 2 is an exemplary cross-sectional view cut across extension modules to be built into a main body of the electronic apparatus shown in FIG. 1;

FIG. 3 is an exemplary perspective view showing a state in which a lid is installed to an opening located at the bottom wall of the main body of the electronic apparatus shown in FIG. 1;

FIG. 4 is an exemplary perspective view showing a state in which the lid of the electronic apparatus shown in FIG. 3 is removed;

FIG. 5 is an exemplary perspective view showing a state in which a subscriber identity module (SIM) card mounting module is detached from the electronic apparatus shown in FIG. 4;

FIG. 6 is an exemplary perspective view showing a state in which a modem daughter card (MDC) module is removed from the electronic apparatus shown in FIG. 5;

FIG. 7 is an exemplary cross-sectional view of a state in which the MDC module is mounted on a stud shown in FIG. 6; and

FIG. 8 is an exemplary cross-sectional view of a state in which the SIM mounted module is mounted on the stud shown in FIG. 6.

Claims

1. An electronic apparatus, comprising: a housing which constitutes an outer shell of a main body having a shielding property against electronic radiation and an opening provided on a bottom wall, said opening is smaller than the total mounting area of a plurality of extension modules that are layered each other;a motherboard installed in the housing;a stud attached on the bottom surface of the motherboard and co-fastening the plurality of extension modules with one set of screws; anda lid which has a shielding property against electromagnetic radiation and which covers the opening.

2. The electronic apparatus according to claim 1, wherein the extension module includes a modem daughter card module with modem functions and a subscriber identity module mounted module on which a subscriber identity module card is mounted, andthe extension module is mounted on the motherboard by any one of at least three forms of:fixing the modem daughter card module in a single layer to the stud;fixing the subscriber identity module-mounted module in a single layer to the stud; andfixing the modem daughter card module and the subscriber identity module-mounted module to the stud by piling each other with spacer therebetween disposing the modem daughter card module close to the motherboard.

3. The electronic apparatus according to claim 2, wherein the modem daughter card module is connected to the motherboard by a connector inserted in the piling direction with respect to the motherboard.

4. The electronic apparatus according to claim 2, wherein the subscriber identity module mounted module is connected to the motherboard by a cable.

5. The electronic apparatus according to claim 2, wherein the modem daughter card module has a label which is folded zigzag, said label is pressed by the subscriber identity module mounted module.

6. The electronic apparatus according to claim 2, wherein the subscriber identity module mounted module is extractably inserted along the longitudinal direction of the housing as viewed from the user.

7. The electronic apparatus according to claim 1, wherein the housing is formed with synthetic resin with the conductive layer provided from the inner surface of the outer shell to the outside of the edge of the opening;the lid is formed with conductive members; andthe conductive layer and the lid are electrically connected at the edge of the opening.